FIELD: power production machine engineering, possibly manufacture of such parts whose surface layer operate in condition of erosion-corrosion actions, high mechanical loads, influence of cryogenic temperatures, for example in power production or chemical-production plants.
SUBSTANCE: method comprises steps of placing copper plate on substrate and melting it by means of electric-arc welding with use of non-consumable electrode; before placing plates, applying flux layers onto mutually joined surfaces; insulating ( for preventing contact with arc plasma) end edges of copper plate and portions of substrate near edges of plate along the whole perimeter; realizing surfacing at melting temperature of copper plate that causes no fusion of base metal of substrate.
EFFECT: enhanced quality of surfacing.
6 cl, 3 dwg, 1 ex
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